Barbecue grill grate stand



FIG. 1 is a perspective view of an ornamental design for a barbecue grill grate stand;

FIG. 2 is a top view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left side elevational view thereof; and,

FIG. 5 is a bottom view thereof. 

CLAIM The ornamental design for a barbecue grill grate stand, as shown and described. 